Patent application number | Description | Published |
20080238108 | Electronically Controlled Engine Generator Set - An electronically controlled electrical power generator comprises a generator ( | 10-02-2008 |
20080296429 | Apparatus for controlling aircraft ground movement - An apparatus for controlling the movement of an aircraft having a self-propelled nosewheel, on the ground, is disclosed. The apparatus comprises a control arm; a control unit; means for transmitting information to said self-propelled nosewheel; means for receiving information at said self-propelled nosewheel; and means for controlling at least one of the speed and direction of said nosewheel; whereby airport ground staff can intuitively control the movements of said aircraft by holding said arm and moving it in the direction of required movement of said aircraft. | 12-04-2008 |
20080312870 | Aircraft weight estimation method - A method of measuring the weight of an aircraft is disclosed. The method comprises, in a self-propelled aircraft undercarriage having a electrical rotating machine, the steps of: measuring the current and voltage going into the rotating machine using current and voltage measuring means, calculating the power into the rotating machine, measuring the speed (or torque or acceleration) of said machine using speed sensing means, and comparing the power and speed (or torque or acceleration) results with a database of power and speed relationships of comparable aircraft of varying weights. | 12-18-2008 |
20090009011 | Motor using magnetic normal force - A motor is disclosed comprising: at least one stator comprising a magnetic core and at least one magnetic winding, having a cylindrical internal cavity; at least one cylindrical rotor inside said stator, comprising magnetically conductive materials; said rotor having an outer diameter significantly smaller than the inner diameter of said stator, being eccentrically mounted with respect to said stator and able to move within, said fixed member; wherein magnetic normal force is induced in said stator periodically, whereby said rotor is periodically moved by magnetic force with respect to said stator, whereby rotary motion is produced; said motor further having: an output shaft concentric with said stator; transmission means for absorbing oscillation and transmitting rotation; wherein said induced magnetic normal force rotates around the circumference of said stator, such that a contact patch between said rotor and said stator rotates around the inner circumference of said stator; whereby said rotor oscillates and rotates; whereby said transmission means absorb the oscillation of said rotor and transmit the rotation of said rotor to said output shaft; wherein said transmission means is magnetorheostatic fluid. A motor is further disclosed wherein said transmission means comprise bearings and carrier supports, wherein said bearings are used as a clutch. | 01-08-2009 |
20090014261 | Apparatus for controlling aircraft parking brakes - An apparatus for remotely controlling an aircraft having a self-propelled nosewheel, on the ground, comprises parking brakes; an APU on said aircraft; control means for applying and releasing said parking brakes; control means for turning on and off said APU; transmitting means for transmitting information to said parking brakes and said APU; receiving means for receiving information at said parking brakes; and receiving means for receiving information at said APU. | 01-15-2009 |
20090114765 | Motor for driving aircraft, located adjacent to undercarriage wheel - The invention disclosed is a self-propelled aircraft undercarriage for driving an aircraft on the ground, comprising: an axle; a strut supporting said axle; at least one wheel rotatably mounted on said axle; and drive means for driving said at least one wheel; characterized in that said drive means is disk shaped and is external to said wheel. In one embodiment of the invention, said drive means is mounted on said axle between said strut and said wheel. In a second embodiment, said drive means is mounted on said axle, on the side of said wheel furthest from said strut. | 05-07-2009 |
20090121560 | Borealis Technical Limited - The present invention provides a method for building a component for an electrical rotating machine and comprises: providing powdered magnetic material; providing electrically conductive material; positioning the powdered magnetic material and the electrically conductive material within a mold functional to provide the materials with the required dimensions after application of a hot isostatic pressing (HIP) procedure; and applying at least one HIP procedure to the materials in the mold. Temperatures and pressures of the process are chosen to ensure that the electrically conducting and magnetic portions of the component are bonded without the materials seeping into each other. In one aspect the present invention thus provides a method for building small compact motor systems using motor components formed from pressed powder. A technical advantage of this approach is that the component has uniform grain structure and thus consistent magnetic and structural properties. The motor may be located inside a vehicle drive wheel, as it is equipped to be a drive motor providing the necessary torque with reasonable system mass. The motor systems of the invention may utilize polyphase electric motors, and are preferably connected to appropriate drive systems via mesh connections, to provide variable V/Hz ratios. | 05-14-2009 |
20090126369 | Integrated direct drive starter/generator for turbines - A turbine starter/generator machine for a turbine, said turbine comprising: at least one fan blade; at least one turbine enclosure; said starter/generator machine comprising: at least one rotor having rotor elements; at least one stator having stator elements; wherein said stator elements are mounted on said at least one air duct and said rotor elements are mounted on said at least one fan blade; whereby said stator elements magnetically interact with said rotor elements. | 05-21-2009 |
20090302787 | Induction and switched reluctance motor - This application describes a motor designed to operate as a reluctance machine at low speeds and as an induction machine at high speeds. The drive waveform is composed of one or more harmonics to be used to match the reluctance pattern of the stator-rotor, causing the rotor to rotate due to the reluctance effect, and one or more other harmonics to induce current in the rotor, causing the rotor to rotate due to the induction effect and the subsequent interaction of the stator and rotor magnetic fields. The two effects are generally not applied simultaneously. | 12-10-2009 |
20100217456 | APPARATUS FOR CONTROLLING AIRCRAFT GROUND MOVEMENT - A method and apparatus is disclosed for reversing an aircraft on the ground comprising driving the aircraft using at least one self-propelled undercarriage wheel. An apparatus for controlling at least one of speed and at least one direction of an aircraft having a self-propelled nosewheel, on the ground, is disclosed. The apparatus comprises a control arm; a control unit; means for transmitting information to said self-propelled nosewheel; means for receiving information at said self-propelled nosewheel; and means for controlling at least one of the speed and direction of said nosewheel; whereby airport ground staff can intuitively control the movements of said aircraft by holding said arm and moving it in the direction of required movement of said aircraft. | 08-26-2010 |
20100219788 | High phase order AC Machine with Short Pitch Winding - A high phase order alternating current rotating machine is disclosed having an inverter drive that provides more than three phases of drive waveform of harmonic order H, and characterized in that the windings of the machine have a pitch of less than 180 rotational degrees. Preferably the windings are connected together in a mesh, star or delta connection. A method for operating a high phase order induction motor is also disclosed, involving electrically connecting N windings into a mesh connection with a value of Δ that provides a substantial range in speed/torque relation when operating with at least two out of first, second and third harmonic, low order harmonics being the most efficient. | 09-02-2010 |
20140336847 | METHOD FOR OPTIMIZING OPERATION OF AIRCRAFT GROUND TRAVEL DRIVE SYSTEM - A method is provided for automatically or manually. optimizing independent ground travel operation in an aircraft equipped with one or more self-propelled nose or main wheels powered by a driver means, wherein selected operating parameters indicative of optimized ground travel are monitored by sensors or detectors to provide data and information relating to the selected parameters during operation of the ground travel system. Selected operating parameters can include, for example, speed, direction of travel, torque, component thermal data aircraft location data, and operator inputs, commands, and feedback, as well as other operational data or information. Data is collected, recorded, and analyzed to enable changes to be made to the ground travel system components in real time automatically by intelligent software or manually by a system operator or at a later time to ensure optimum operation of the system. | 11-13-2014 |
20150040679 | ACTIVE RESISTANCE DYNAMOMETER FOR WHEEL TESTING - A wheel testing system and method are provided that simulates realistically conditions likely to be encountered during operation of vehicle wheels, especially powered drive wheels and wheel-connected structures. The system may include an integral support frame designed to adjustably mount wheels or wheel-connected structures to be tested, a load motor drivingly connected to an inertial load, and an adjustable mounting sled configured to adjustably mount a test wheel or a wheel-connected structure with an hydraulic system actuatable to adjust the location of the test wheel relative to the inertial load to vary or fix the load on the test wheel desired. Speed of the test wheel can be varied or fixed by controlling the speed of the load motor. System measurement and data collection electronics measure a range of selected wheel parameters and gather data for transmission to a processor or non-transitory storage medium for processing and evaluation. | 02-12-2015 |